How Much Is a Car Key Battery? DIY Cost Guide
A car key battery usually costs $2-$10 for a replacement coin cell, while professional installation typically costs $25-$75 at an automotive locksmith or $50-$100 or more at a dealership. Most key-fob batteries are 3-volt lithium cells, and replacing one yourself generally takes 5-10 minutes if you install the correct size and polarity. Key Facts at […]